Receptacle filling and sealing machine



pdb 25 m36 A. s. CHANDLER RECEPTACLE FILLING AND SELING MACHINE Filed Sept. 2, 1935 '7 Sheets-Sheet l 'F 25, W36. A, s. CHANDLER 0329259 RECEPTACLE FILLING AND SEALING MACHINE Filed Sept. 2, 1933 7 Sheets-Sheet 2 A TTORNEY.

a n @3a. 25V, 193%. A, s. CHANDLER 290329259 RECEPTACLE FLLNG AND SEALING MACHINE Filed Sept. 2, 1.935 'TSheetS-Shee 3 IN VEN TOR.

Rah., 25, E936, A. s, CHANDLER vRECE'PTACLE FILLING AND SEALING MACHINE Filed Sept. 2, 1933 '7 Sheets-Sheet 4 A. S. CHANDLER RECEPTACLE FILLING AND SEALING MACHINE Filed Sept. 2, 1953 7 Sheets-Sheet 5 INVENTOR: wa 57. @M629 ATTORNEY.

6 0 o@ w om 2 www Fh 25, i936. A. s. CHANDLER RECEPTACLE FILLING AND SEALINC- MACHINE 7 Sheets-Sheet 5 m M w w.

Filed Sept. 2, 1953 .Llll

A TTORNEY,

A. S. CHANDLER RECEPTACLE FILLING AND SEALING MACHINE Filed Sept. 2, Y1935 7 Sheets-Sheet 7 Humm ll-IH INVENTORI A TT ORNEY.

Patented Feb. 25, 1936 UNITED STATES PATENT OFFICE RECEPTACLE FILLING AND SEALING MACHINE setts Application September 2, 1933, Serial No. 688,048

13 Claims.

The invention relates to packaging machines, and while its mechanism is applicable to use with various receptacles it is here represented as applied particularly to a flat bag lling machine. It is an important aim of the invention to present novel mechanism operative to measure accurately a charge of granular or iiuid material, discharge it into a receptacle automatically presented to receive the charge, close and seal the receptacle and discharge the completed package conveniently for bundling or packing in a case.

- It is an important aim to develop such a machine Which will be extremely simple in construction and. in which the several operative parts are all readily accessible for adjustment or repair. One of the important attainments oi the invention is the embodiment of such a machine in an extremely small space. It is also an advantage that the operative connection of the elements is extremely simple, and enables the tending of the machine by an operative having a minimum of mechanical training or operating experience.

An object of great importance also is to present such a machine which will be adaptable in a novel way to accommodate bags and other containers of diierent sizes without requiring substitution of parts. Another object is to enable the presentation, filling and conveyance of paper receptacles with a minimum liability of damaging or wrinkling the receptacles and also with a liability of producing marks on the surfaces or scarring or smearing of the printing thereon.

It is also a purpose to evolve a means for conveying the containers that will not subject the goods to severe shocks.

A specific object is to present a, novel charge guiding device to coact between the measure and the receptacles as presented to the end that the charges will be guided into the receptacles when opened, but will return the charge to theehopper of the machine in case the opener fails to properly engage a receptacle.

A novel attainment of the. invention is an intermittent conveyor action for conducting lled containers so constructed and operated that no positive grip is required to effect rap-id movement of filled receptacles from stage to stage without lagging of the packages and yet with prompt movement and stoppage at each stage without upsetting or other uncertainty.

A further important purpose. is to present a novel construction in the bag presenting creasing and sealing devices.

An important advantage of the invention is that it may be mounted upon a table with complete clearance therebelow.

Additional objects, advantages and features of invention reside in the construction, arrangement and combination of parts in the embodiment of the invention as will appear from the following description and the accompanying drawings, wherein Figure l is a top View of the machine.

Figure 2 is a left end elevation with parts broken away.

Figure 3 is a cross section on the line 3-3 of Figure 1.

Figure 4 is a similar View showing the creasing action.

Figure 5 is a cross section on the line 5-5 of Figure l, showing beginning oi the sealing action.

Figure 6 is a fragmentary section similar to Figure 5 showing the closing action in a further stage.

Figure 7 is a similar view to Figure 5 showing another stage of sealing action.

Figure 8 is a view of the bag opener and its operating connection as viewed from the front, with intervening parts broken away.

Figure 9 is a perspective view of the opener and bag chute.

Figure 10 is a detail section showing the initial position of the bag opener and the safety trap.

Figure 11 is a similar View showing the lling position of the parts.

Figure 12 is a similar view showing the trapping position of the parts, by which waste of the charge is prevented in case no bag is in position.

Figure 13 is a detail of the intermittent gear. ing by which the conveyor and turntable are operated.

Figure 14 is a top view thereof partly in section.

Figure 15 is a detail of the pivot of the sealing bar.

Figure 16 is a front View of the lling station.

Figure 17 is a detail of a modified creasing station with positive bag stop.

Figure 18 is a fragmentary top View o1' the turntable with positive bag stop.

There is illustrated a machine comprising a table frame 20, the top plate 2l of which is formed with reinforcing fianges 22 at the edges, and foot pieces 23 at the corners, so that the machine may be set upon an ordinary table or bench, although other methods of support may be employed if desired. The plate 2l is rectangular, and the rear flange 22 is provided with bearing brackets 24 in which a main shaft 25 a driven gear and clutch assembly 26 adapted to be connected and disconnected from the shaft by the yoke 21 operated by a hand lever 21' at the front of the machine. Y A power gear 28 operated from any suitable source drives the clutch gear 26. At the rear and left handY side ofthe table a low levelA receiving hopper 29 is erected from which a cased bucket conveyor 36 lifts stock to a suitably elevated point of discharge above a small hopper 3| within the Vside'plates 32 of the casing of the conveyor, which are extended'forwardly at their lower parts a distance and utilized asa mounting for the measure and'trap Y devices and the bag opener,V as will be described.

YBeneath the hopper 3| there is' reciprocable a measure and 'charge carrier 33 arranged to re ceive from the hopper 3| and mounted on 'an os-v cillating arm 34 carried by a rock shaft 35. This shaft is rotatably mounted in the plates 32. It projects at the left and is provided with a fixed arm 36 connected by a link 31 with an arm 38 on a counterrock shaft 39 at the lower part of the plates 32. This counter shaft projects at the right and is provided with a vdownwardly extending arm 48 khaving a wiper 4| engaged in a groovefcam 42 of a rotary shaft 43 mounted in Vbracket bearings 44 closely over the plate 2|. at right angles to the main shaft .and driven therefrom by bevel gears 45 near the hopper 2S.

VThe shaft 25 is extended further towardr the.

hopper 28 and has a sprocket drive Yto the lower shaft 46 of the conveyor 30.

y The cam 42 operates the measure with a throwV which carries it well forward and downwardlyY toward the front of the machine to deliver the charge, the plates 32 having an extended part 48 to form a measure chamber accommodating this movement of the measure. There is a'front plate!!! between the plates 32 forming the front 'side of this chamber and also forming a cover for the extended parts, as iny Figure 2. The extended portions and the front plate 49 have a vertical `front part 56, the plate 49 stopping short at the lower edge of this Vertical part, Yand the VVside plates being'cut away abruptly to the rear so as to afford a clearway over a conveyor to be described'.Y From a l/ine parallel 'to and spaced Vclose to a projection of the terminal part of the path of the measure (see Figs. 10-12) a diagonalhopper wall 5| is extended downwardly and rearwardly between the plates 32, terminat-V or mouthpiece 53 Varranged to extend across the opening 54 between the walls 5| and 55. The

thickened part is longer than the part 53 and isr tapered toward the opposite Vextremity of the trap plate in an extended V-shape, forming the trap proper as atrr54, so that when this part is swung forwardly against the Vwall 50 the trap Vwill be in charge diverting position and presents an inner or back face inclined downwardly and rearwardly, lying inwardly of the wall 5| at its lower or thickened part. Whenswung'away from the wall 5|) the trap forms with the wall 50 a funnel-like passagerleading to the opening 54 .The trap is operated in synchrony with the measure. Itvis fixed on a shaft 55 which is Yis revolubly mounted, on which there is revoluble The trap being in initial position as in Figure 10,V

the arm 56 extends downwardly and rearwardly,V

and the spring is anchored .thereabove A lateral wiper 58 is provided at the extremity of theV arm engaged on the upper sideby a long arm 59 of `a bell crank lever 6D pivoted' slightly above the level of the pivot of the trap. The short arm 6| of this lever extends upwardly and has a wiper bearing initially upon the high part of a Vcam 62 xed on the shaft 35 of the measure.

By this arrangement, when the measure is moved forwardly the low part of the cam permits the arm 59 to yield to the'wiper 58 and the spring 51 moves the trap forwardly.-

A bag opener and tunnnel 63 is provided at the front of the measure housing, consisting` of 4a Y sheet steel plate having a flat front part 64 lying flat against the wall 59, the lateral edge portions 65 of the plate being bent rearwardly at right angles close besidethe plates 32,7so that the opener may slide vertically from a position above thev lower edge of the wall 53 to bag engaging position well extended below the opening 54. The lower end edge of the middle portion 64-of the opener is trimmed on an inverted arc so, that its central partprojects as a bag-entering tongue While Vthe adjacent edge portions of the sidesV 65 are trimmed on an incline so that they extend from the plane of the plate 54 upwardly and rearwardly. In this way they serve as wedges on entering a bag, to separate the front and back walls of the'bag as will be understood.

'Ihe opener 63 is attached to Ya rigid arm 66 which extends therefrom to the right, and is bent rearwardly and attached to a vertical slide 61 carried in a guide 68 beside the hopper at the right hand side of the hopper. The slide is operated by a link 69 from a cam 15 onrthe end of the shaft 43. The link is connected to the right hand end of a lever 1| pivoted a distance to-Y the left of the shaft 43 on a plate |12 between the platen.V and between the plates 32.

This'- lever is longitudinally slotted as at |13, and is crossed by the similarly slotted'long arm' |14 of measure reaches its forward and discharge Vpo-V sition, soas to'guide a charge from theV opening 54 vinto a bag into which the openerhas been projected.

On the frame 20, spacedforwardly from the plane of the plate 5D and to the right of the opener structure there is a pedestal 12 secured to the top of the top plate 2|. Inwardly of this pedestal there is a. transverse conveyor |05 toV be described. On the left-hand side of the pedestal a Vvertical dovetail rib 13 is formed, on which there is slidable a carriage 14,. resting upon aV screw 15 operated by the gear nut 16 driven from a hand wheel 11 by suitable connections, by which the carriage is moved to desired posilic'ns in its Vertical path.

At its upper part the carriage is formed with an arm 'I8 extending to the left, at the outer end of which there is formed a forward extension 19 and across the top of the carriage there is a dovetail channel 88 at right angles to the arm 18 and conveyor in which there is slidable a box slide 8| moved toward and away from the hopper by operating connections to be described. Upon the slide 8| there is formed a guide 82 transverse to the channel 8|] (parallel to the conveyor) and having a dove-tail channel longitudinally thereof in which there are fitted corresponding ribs 83 formed on complementary bag box bases 84, which may be integral with respective box walls 85. They are adjustable in the channel by a hand screw 85 having right and left threads engaged in corresponding threaded openings in the box bases 84. The screw is held against longitudinal movement by a plate 85 through which a tenon of the screw projects to receive the hand head 85-a at the left of the guide 82. This box is adapted to receive a multiplicity of stacked bags 86 and present them for engagement by the opener. Other means may be utilized for prej senting receptacles, and various forms of receptacles may be employed, as will be understood. In the present'instance, the bags 85 are flat paper receptacles each having an unfolded tongue 81 at the upper open end, and the back flaps or wall of the bag are of less altitude, as is familiar in this kind of bag. The bags are all arranged with the low sides toward the rear end of the box, and their open ends uppermost. The box is in fact a U-shaped trough or chute in halves with the bottom 89 curved longitudinally as a sector of a circle, the rear part of this bottom being horizontal and the bags thereon vertical and extending transversely between the two halves of the box. The top, the front and rear of this box are open, the rear or delivery end having on each of the side walls 85 inward of the vertical plane of the rearmost edge of the bottom 89, two or more inwardly projecting bag engaging lugs 88 which project slightly before the bags and engage against their extreme edge and back face portions so that they will not fall rearwardly from the box before being opened. A vertical standard 99 is mounted upon the box clear of the space for the envelopes, and adjacent the rear part of the box, a horizontal pivot pin being mounted at its upper part concentric with the bottom of the box. Pivoted upon this there is a swinging follower arm 9| and weight 9|' the latter in the form of a flat plate adapted to lie at against the outermost bag. The arm 9| may be spring pressed by a torque spring 92 at its pivot, or other means.

The bag box is reciprocated so as to be moved rearwardly to the position shown in full lines in Figures 1 and 2 by connections from the shaft 43 which operates the measure and the opener. At this position the upwardly extended tongues 8l of the bags are pressed against the lower extremi ty of the opener 63 (which is at the upper limit of its movement) and the low rear side of the bag caused to move slightly inward of the opener, so that the latter may readily enter the bag when the opener is moved downwardly. After downward movement of the opener the bag box is moved forwardly again. The reciprocating means for the bag box consists of a bell crank lever 93 pivoted on the extension 'i 9 of the carriage, the upper end 94 of the lever being slotted to receive slidably a lateral pin 95 on the forward end of the slide 8 I, a short arm 96 of the lever having an extensible link 91 pivoted thereon and connected pivotally to the forwardly extending arm of a bell crank lever 98, pivoted on the front side of the frame 20, the lower arm of the last named lever being linked to an operating lever 99 near the rear part of the frame 20, the upper arm of which is provided with a wiper engaged in the slot of a cam |09 on the shaft 43.

The carriage 'I4 is provided at the left hand extremity oi the arm 'I8 with a rearwardly projected bearing stud |8| on which a flanged conveyor pulley |92 is revoluble. By the latter construction and that preceding, in case it is desired to accommodate the machine to larger and deeper bags, the handwheel 'il is utilized to lower the carriage, so as to accommodate the upper ends of the bag to the opener, and the stroke of the latter may also be regulated as before indicated so that the various sizes of bags will be fully opened.

At the right hand end of the frame 20 there is a pedestal |83 on which there is mounted a driven pulley |04, receiving the conveyer belt |95 therearound, the belt being also engaged around the pulley |92 at the left end of the machine. The upper reach of the belt is supported by a horizontal plate |55, carried on standards l? fixed in the top plate 2| of the frame rearwardly of the conveyer. It will be noted that the conveyer belt is formed with a rib |08 at the front edge which may be either a separate belt driven in line with the belt |85 or may be integral therewith as shown. Spaced rearwardly of the rib |08 a suitable distance, and at a proper level thereabove to accommodate the lled bags, as will be explained, there is a horizontal guide rail |89 mounted on the standards lill by arms H0 extended rearwardly from the rod |89 and slidable through suitable apertures in the standards i9?. They are xed in their adjustment by lock screws Iii engaged in the upper ends of the standards and adapted to bear against the arms HS. The pulley |84 is fixed upon a shaft |41 revoluble in a suitable bearing vertically slidable on the pedestal |93 and having an intermittent drive to be subsequently described.

The hopper iirst described, together with the bag opener and measure and the bag presenting means constitute a filling station with respect to the operation of the conveyer. The conveyer belt will be stationary at the time of release of the bags. The operation of the opener is such that in separating the front and back walls of the bags its lateral edges and bottom edge are drawn rearwardly so that they clear the lugs 88, leaving the bag free to slip downwardly from the opener as soon as released by the trap, and it will drop onto the belt |85. It will there rest with its bottom crease close to the rib |08. Its center of gravity and pressure of the bottom of the bag box against the upper part of the bag will cause the latter to fall rearwardly at the upper part until it leans against the guide rail iBS. The conveyer belt operating means will then begin slowly to move the belt and accelerate it, decelerate and stop it with the filled bag at a creasing station a distance to the right of the lling station.

At the creasing station there is provided at the front side of the belt a spring-loaded anvil blade H2, the upper edge of which is bevelled to the front and located at the level at which the crease is desired on the bag to be operated on when the latter is upright on the belt. The blade is mounted removably on a cross member I3 at the upper end of an arm H4 pivoted on the plate 2| in thel medial vertical plane of the conveyer and suitably offset in its intermediate portion to clear the eonveyer and other parts therebeside. At the 'front of .the frame 20 before the arm H4 a pillar through the arm against the plate and seanvil blade.

cured in adjusted positions by a lock-nut H0. An arm ||9 similar to the one H4 is mounted on the same pivot and arranged at the opposite side of the conveyer, carrying a presser blade itil at the upper end opposed to the blade H2 and adapted to lie flat thereagainst with itsrear Y wardly bevelled upper edge closely alined with the corresponding edge of the blade H2. On the pililar there ismounted a downwardly spring pressed pivot creaser arm projected toward the anvil ||2 and having at itsouter end a transverse creasing roller |22 set with its lower part close against the blade l2 when in initial position and supported by a stop screw |22 so that it may readily ride over the blades. The itil is: held Vrearwardly of the path cf the loaded bags resting against the rail ille by its operating means and when a bag is stopped by the conveyer at the creasing station the arm l is is pressed forward?V engaging against the rear wall of the filled bag and moving the Ybag to erect position again TheY spring iid is of sustrength to cause the bag to be pressed qui between the blades before yielding, and then is pressed rearwardly under the roller ist,

presses the flaps 81 forwardly'over the blade lfd. Y Yg If desired,-and this is customary practice with this inventionboth blades may be helcw the top edge of the back wall of the bag, so that both walls'are folded and creased, making more se Y cure closure. The operating means for the presser arm 9 consists of upwardly rez-tended arm |23 of a rock shaft |24 suitably mounted and extending to the right, where it has a lower arm |25 carrying a wiper |25 engaged in the groove of a cam |21 mounted on a cross shaft |28 driven by bevel gears |29 from the main shaft 2li at the right hand end of the frame 2Q. The arm |23 is linked to the upper end of therarni lis. The cam is timed and shaped so that the arm i d is pressed forward and returned during the interval when thebeit it is stationary. this way a bag stopping at the creasing station is re,- turned into the position sho-wn in full lines in Figure 3 when the belt resumes movement after stopping-by the blade H2 in the initial return movement and by gravity and the plate |3| when the arm H is checked by the screw i position. This plate |3i is substantially erect initially, Yand yields to the filled bag while the latter is being creased. It is much wideV1 than the bag, as are the blades iii and 2.53, so that accurate positioning Yof the bag is not required. and the plate may have a wing |32 at the departure side turned slightly forward toward the path of Y the conveyer .so as to fend the upper part of a bag forwardly and so cause it to fall again against Y revolubly therein.

drivegearing therefor and for the conveyer |05.

As noted in Figure l, the cross shaft |28 stops Y a distance forwardly of the cam |21, and rear-Y wardly of the conveyer |05.

A pedestal |33 is erected on the plate |2| of the'frame, Ythis pedestal carrying the shaft |24 in a rearrbracket bearingl, and having the forward end of the shaft |28 journalled at the right hand side Yin a hous-ik ing |35 for an intermittent gearing. On rthe extremity of the shaft |28 in the housing a crank Y|346 is formed or secured, having a wrist stud |31 thereon in which is engaged an orbital' driv-V ing gear 38 pinned or keyed so that it is fixed with the crank, the radius of this gear being the same as that of the stud |31. At a distance from the shaft |28 to clear the gear |38 and inzthe ,1,

pintle |43 on which ,the swinging gear revolves.;

The pin projects beyond the link` atYV the Vside adjacent the end of the wrist" stud |31, andre- A swinging gear I4| is held in mesh with'` Vceives therearound an eye of a linl; |44 which has 'Y the outer end portion of thewrist stud hushed' 'The linl; |44 holds the gear |4| in mesh with the driving gear so that the drive Vwill Vbe transmitted from the driving to the driven gear at all times. However, as Ywillbe understood, at one part of the movement when the `crank is radial and extended outwardlyr with respect to the gear i4| norelative rotation mum occurring when'the crank is at or near its;

innermost position with respect to the gear |4.|, from which point the motion will be decelerated to zero again.

The shaft |40 Vis extended toward the front of the machine beyond the conveyer, and jour- Y nalled in a suitable bearing at the rrightofrthe .g

pedestal |03 which carries a turntable |50 to he described. A'vertical shaft |45 is mounted within the pedestal |03, driven by worm gearing i46 from the end of the shaft |40 and is utilized to drive the shaft 41 carrying the right hand driven conveyer pulley |04, by means of Vbevel gears |48. At the upper end of the shaft |45 a simple pinion |49 is used to'drive a large gear |5| on the turntablek |50. The latter comprises a hexagonal plate |52 having a bored hub |53 on the' circumference of which'the gea-i |5| is keyed, and resting on a horizontal ear |54 extended to: ward the front and left. in which there is fixed a vertical stud shaft |55 bushed revolubly in the hub of the turntable. The hub of the latter also extends upwardly from Vthe body of the plate |52 affording seats for springs |56 Vby which sealer bars |51 are operated, as will be described. The

plate |52 is flanged at the lower side to afford Y suitable vertical dimensions' for the peripheral faces |58 which are horizontally rectilinearbut are curved concavely from near the bottom to` afford anvil surfaces against which the envelope and flap maybe pressed by the sealer bars |51 pivoted at the upper edge of the plate |56 rso soV as to swing into and fit the faces |58. This pivot axis is on the line of fold of the bag as nearly as possible. For this purpose, the plate is recessed to receive ears on the sealer bars |51 and the corners of the plate are suitably formed to permit the ready engagement of pintles through parts of the plate and the ears of the bars. Centrally of the back side of each bar |51 a short lug or arm |59 is formed on the bar on which is pivoted a short link |60 connected to a radial vpush bar |6| slidable in a guide |62 formed on the upper side of the plate I 52. The link is connected to a lug |63 on the push bar which also serves as a seat for the outer end of a respective spring |56 by which the latch bar is moved to the outer` limit of movement. On each side of the guides ears |64 are formed, between which there are pivoted latches |65 having bills on their under sides to engage the outer ends of respective bars 6| when retracted. The links |60 are of -such length, and the bars |6| so spaced over the sealers |51 and arms |59 that the link approaches close to a dead center or a little short of right angles to the path of the bar |6| when the latter is at the outer limit of its movement checked by engagement of the bar |51 with the bag end. In this way a very effective high compression is obtained with a comparatively light spring |56. Additional means is provided however, to eect high pressure of the bag flap in sealing. This consists of a stationary cam |66 fixed on the stud shaft |55 over the turntable. Pins |61 are set on the upper sides of the push bars |6| to engage the periphery |68 of the cam, and to be engaged by an internal cam face |69. The face |68 is concentric with the axis of the turntable and has a rounded incident end. The under side of the cam is recessed to accommodate the pins |61, and on the side of the cam opposite the face |68 a dependent flange |69 is formed the inner face of which is spiral comprising an internal cam', its incident end being outwardly of the outer limit of movement of the pins 61 so as to engage the same and ward them inwardly, while the inner part or that'of shortestradius lies inwardly of the inner limit of movement of the pins |61. Since the latches rest with their bills upon the bars |6|, when the face |69 draws the pins |61 inwardly fully, the bills of the latches drop into retaining engagement with the ends of the bars and serve as detents. The `latches are formed with faces 1| inclined upwardly from the bills to permit the release of the latches byr inward pressure thereagainst of reciprocating release bars |80 to be described. y

The pedestal |33 is formed across the top with a guide channel |8| at right angles to the conveye'r, in which there is reciprocable a head |82 operated by a link connection |83 with an arm |84 extended upwardly from the shaft |24 at the right hand end. This channel is on the level with the lower part of the flanged edge or periphery of the turntable and the head |82 is formed with an upward extension |85 at its forward part in which there is extensibly fixed the release bar |80 positioned to aline with the adjacent push bar I6! and on a level therewith. The part |85 is formed with lateral extensions |86 parallel to the conveyer on the ends of which there are pivoted the ends of a substantially U- shaped spring-pressed bag holder |81, forward swinging movement of which is limited by a stop V|98 on the part |86. The holder |81 is held yieldingly toward its forward limit by a spring |89. The bight portion |81' of the holder |81 is rectilinear and horizontal, and when the head 82 is retracted lies just rearwardly of the line of the rail |09 so that bags may slide from the rail onto the holder |81, and be moved toward the anvil faces of the turntable when the head |82 moves forward.

A glue box |98 is provided on the pedestal on the side next the conveyer, in which a roll |9| is revolubly mounted, and on the forward part of the head |92 there is pivoted a yielding glue bar |92 the end of which moves on such radius as to engage the roll |9| when the head is retracted and is spring-pressed toward the forward and upper limit of its movement limited by a wiper arm |93 thereon which projects rearwardly and has a wiper bearing down upon a cani plate |94 fixed on and projected forwardly from the pedestal below the head |82. This cam has a horizontal outer part of some extent adapted to limit the glue bar elevation through the final part of the forward movement of the head 82, and at the rear part the cam is curved upwardly, so that the wiper is fended upward and the glue bar swung downward to the roll |9| as the head |82 is retracted. The gumming apparatus is approximately the same distance from the creasing station that the latter is from the filling station.

It will be understood from the foregoing that by the operation of the intermittent gearing |35 the conveyer belt |05 and the turntable are operated simultaneously, the connections being so proportioned that the belt is moved a distance at each interval corresponding to the distance from the filling station to the creasing station and the unit movement of the turn-table being sufficient to bring succeeding sides thereof into opposition with the gumming device and stop it at each pause of the belt, The operation of the shafts 25, 43, and |28 is synchronized. The cam |60 is shaped and positioned so that the bag box is thrust inward while the bag opener is raised and the cam is formed and positioned to then lowerthe opener, and the cam 43 will immediately then operate the measure and trap, as before indicated.

The initial movements of the opener and measure may occur while the belt |05 is in motion and decelerating. On this account, the rearward movement of the bag box 85 must have been completed, and may occur immediately after release of a filled bag. The purpose of the rearward movement of the box is to press the tongues 81 against the lower end of the plate 64, and the forward movement will relieve a lled bag of pressure from the stock in the box 85 so that it may drop freely, as well as insuring clearance of the bag from the box. The entry of the opener 63, however, will clear the edges and bottom of the bag from the box. As shown in Fig. l, positioning of the box at rearward position while the filled bag is at loading position will insure its falling rearwardly at the upper part so as to lean against the rail |09, and return movement of the box at such time will move the bag to such position, or beyond a vertical plane at the bottom crease of the bag.

The cam 42 will release the trap and permit the filled bag to drop onto the conveyer belt while the latter is stationary and the opener 63 will be raised immediately thereafter. It should be noted that the body plate 64 of the opener 63 is in a vertical plane with the rib |08, and reciprocates in that plane, so that when the sides 65 have engaged within a bag at the open A-with armi-,|91 miete) extendedv femm-diy V:and Vupwardly and vhaving an l..s.`napedfinger:har |08 slidable transversely therein, which projects end ofthe box'V v85, Vthe movement of vthe rearV and outer wall of the bag by these sides 65 vdraws the side creases of the bag'inward toward each A,other and also displaced them and the lbottom crease 'rearwardly beyond the lugs 88, and to'a plane rearwardly of the rib |88. Thereby, when the bag is filled and released, it falls with its bottom crease between the rib |08 and the vertical plane ofthe rail |09. The bag tends to fall also towardY the rail |09 after engaging the belt so as to rest inclined against the rail,this being assured by engagement of the upper end of the bag ,byV the box 85. Operation of the creasing apparatus occurs at the same time thatV the belt stops and quickly returns to initial position so that the creasedV bag will be in place for ccnveying when the movement of the belt begins again. Y

',At the `creasing station the operation of the presser-blade |20 Yquickly presses the upper part of the bag under the roller |22 pressing the tongue vof the bag rearwardly and forming a sharp crease by which the extremity of the bag is kept bent over as it is carried to the gumming and sealing device. At the latter station when the belt'stops, the head |82 is moved quickly forward drawing the glue bar from the roll |9| and the cam |94 allows this bar to swing upward `to maximum and move forward in that position against the envelope below the crease at the instant that the bar |80 lifts the latch |65 releasing the push bar |61 which operates the adjacent sealing bar |51. The bar |6| 'then is held by the end of the releasebar, and as Vthe head |82 moves back; the bar |6| follows, causing the sealer bar to swing downward upon the adjacent inclined tongue of the bag, Yand a portion of the walls also, (the creaserusually being a distance below .the base of the tongue) swinging the parts -so engaged against the body of the bag next the anvil face of the turn-table. The glue bar will have been` drawn straight back after contacting the bag so that no glue is deposited below the folded tongue 81. The bag is now held clamped bythe bar |57 against the anvil face |58. The turn-table is immediately rotated one `stage as the belt begins toiinove, and

the pinjl'l of the Vrespective 'push bar |6| immediately engages the rounded beginning of the concentric part |68 of the cam which presses it outwardly increasing the pressure on the sealing members |51 and retaining this pressurefor three stages of movement of the turn-table, when .the internal :cam '|87 engagesthepin'at the outer f side and in two stages returns it to its inner -limit permitting the latch thereadjacent Vto again engage the end of the push bar and hold it until `it reaches the sealing station again and is re-V leased bythe bar |85. 'Ihe movement of the pin |67 against the internal cam H59 releases the sealed bag, which drops before .reaching the Y table 2| while Vthe turn-table is just beginning to move from vits stationary stage and any desired receiver and holding or ordering device may be used in conjunction with this delivery;Y

Y If desired, the conveyor may be operated so as to move slightly further on each movement than the distance between stations, anda stop utilized across the pathof the bags to positively stop them while .the belt moves Ya little beneath'tliem. Y "I 'hestop for the creaser station may be as Yshown in Figures -17 and 18, where a lever 951s pivoted oneirock-shaft |95 mounted inlugs` |99 formed yon the under side of the vplate |06. To the left of the roll |04 the shaft stops and is provided rod 202 Varrangedto :bear upon the farm 1200 ywhen the slidelmoves downward; The arm |95 exV tends from the-shaft |95' towardthe front'of the machine, thence upwardly .a distance from f the 1belt |05, and thence :inwardly `over the belt, so that when the .arm 200 is Idepressed the stop arm |96 will be in position to stop -a filled bag lon the conveyor4 belt |05.V The arm |91alsolpro ,jects forwardly from the .shaft ISS-and then up.-

ward, -its upper end bored transversely V(see Rig. 18'). The nger 'bar |98has a rectilinear long part slida-ble through theend of the arm .|91

vvvithmeans to lsecure it adjustably in various vextended positions. Vlits extreme right hand endl portion'is extended rearwardly so Vas to lie over the belt |05 in approximatelythe'same position relative thereto as thearm |96, when-the arm V200 is depressed. Any .suitable means" may be employed to return the stops .|96 and yI98-.to iinitial `position clear :of the receptacle. path, -a con-V tractilefspringr200' being shown for this-purpose,V connected betweenthe -arm V200 and plate ma Y Y, t n

For .the vertical adjustment of :the .conveyor .|05 at b'oth ends simultaneouslyy-.the handwheel -11 turns a shaft"203., whichv extends rearwardly -and-hassa :bevelgear at its .rear end `meshed with V'asimilar gear at 204 :on a 'shaft'.205,' 'which extends both to left `and right, and vat the .left rend drives the screw by bevel gears`V 16 as before described:` The shaft 2.05- extends to thelright vdrives 1a, vertical .screw .201 engaged .in :an iarm :208 which is projectedifrom'a V.carriage 20.8 (Pags.

5 and 7)` mounted for vertical-slidingmovement Y ton the lpedestal :|.03. Theshaft operating theVV turn-.tablezextends through the `carriage sand the shafi'fv .141. iis mountedponfthecarriage 209, one -of the gears .|48 being slidably splined'o'n Athefshaft frcltu'unf- .1.iIn a' device of lthe character'described, Va,

loadingY station comprising a. charge 4frnrnlirlg and discharge meansfarr'anged to dischargeat'xa given'location, a bag opener'cooperative there with and operative in a predetermined location with respect thereto, a bag presenting, conveying;

scoring and sealing train associa-ted' withv the chargef'forming and dischargermeans and` bag opener, said train comprising an endless belt, a

.bag chute extending laterally therefrom open adjacent the belt, said belt havinga supporting rollermounted on an axis fixed with respect `to thelevelof the bag chute, means to 4supportibags upright onpthe belt, ajscoring means lcomprising .a yieldingly mounted anvil member, at one side* of the pathof the belt and a scorer bladefat the other side fof said path movableagainst the anvil Y and beyond a presser member in the; path of the anvil and blade constructed to engage and ride thereover, means to operate theV presser blade intermittently, and argripping and sealing .device in operative relation to. the' path ofthe belt-.opa

Y. erative to grip bags set upon the belt`rsimultane- -ously with operation of the scorer blade; said loading station, said scoring and sealing elements b eing spaced uniformly along the path of the belt, and means to operate the belt intermittently to travel the distance of said spaces and stop for the period of the operations of loading, scoring and gripping, and means to operate the loading, scoring and gripping and sealing devices simultaneously.

2. In a machine of the character described, a charge forming machine including a charge carrier adapted to discharge at a given point under movement in a fixed path, a container box having an open side adjacent the point of discharge and Container channel extending laterally from the said path, a multiplicity of erect flat folded open containers set in the box, means to press the containers toward said open side, the open side of the box having projections constructed to project before the edges of the rst adjacent container, an opener reciprocable and shaped to enter the opening of the rst container, to form an open receptacle in line with the path of the return charge carrier, and means to move the carrier to discharge position and return whereby it will throw a charge therefrom into the open container, said opener having parts divergent from the entrant end thereof and from the plane of the iirst container in the box, whereby to draw the container from the box, a mouth-piece at the side of said path opposite the box, adapted to enter the opening of the container and hold the same distended, and means to move the mouth piece into wedging and retaining engagement in the opening of the rst container in advance of the Charge carrier, and to withdraw the mouthpiece, and means to receive lled containers therebelow.

3. A charge forming and receptacle filling apparatus comprising a receptacle presenting device adapted to present receptacles in a given position, an opener reciprocable toenter presented receptacles, said opener having a channeled form, a charge carrier movable into the channel of the opener when engaged in a receptacle of the chute, a receptacle front side engaging gate pivoted beside the path of the carrier, adjacent the point of cscharge and having a mounting for movement whereby one part is movable from a position above the opening downward within the open receptacle and laterally to frictionally engage the side of the receptacle opposite the opener, means to move the gate to inoperative position, yielding means to move the gate to engaging position, and means to move the carrier to discharge position between the gate and said opener.

4. The structure of claim 3 in which said gate has an extension in the Aform of a chute plate ymovable therewith to lie interposed in the path of the carrier in advance of discharge position to receive a charge when the gate element moves from inoperative position beyond receptacle-engaging position, and means to receive charges from said gate extension.

5. The structure of claim 3 in which said gate is a member pivoted on an axis parallel to the plane of the presented receptacles and opener, one part projected downwardly therefrom to swing from a position near the opener downward into an engaged receptacle and against the iar side of such receptacle from the opener, and adapted to swing beyond such position if no receptacle edge is normally positioned in its path, and an upwardly extended part positioned and constructed to extend upwardly divergent from the opener when the gate is engaged with a receptacle normally to form a guide for charges from the carrier and to lie across the path of charges from the carrier when the gate is moved past normal engaging position with receptacles, operative connections for the elements named, and means to receive charges from the gate guide extension.

6. The structure of claim 3 including a hopper, having an extended part open at the lower side in which said carrier moves and through the lower part oi which the carrier discharges, said gate being pivoted to swing against the front side of the extension as a closure in inoperative position.

7. The structure of claim 3 including a hopper, having an extended part open at the lower side in which said carrier moves and through the lower part of which the carrier discharges, said gate y being pivoted to swing against the front side of the extension as a closure in inoperative position, said extension having a lower inclined part adjacent the pivot of the gate, said extension of the gate being shaped to deliver to said inclined part of the hopper material received thereon when in causal position.

8. The structure of claim 3 including a hopper, having an extended part open at the lower side in which said carrier moves and through the lower part of which the carrier discharges, said gate being pivoted to swing against the front side of the extension as a closure in inoperative position, said opener being a plate member slidable in close relation to the front side of said hopper extension and having sides conforming to the sides of the hopper extension and having inclined lower edge portions divergent from the plane of the said front side at their lower parts to form wedge elements for the purposes described.

9. A creasing device for machines o f the character described, comprising a conveyor belt, a support parallel thereto above the level of the belt and being also spaced from a vertical plane medially of the belt, an anvil device laterally movable with respect to the belt spaced from said medial plane and having an upper angular edge portion at a level in predetermined relation to receptacles on the conveyor, a presser at the opposite side of the conveyor, a yieldable creaser adapted to ride over the anvil and presser when the latter two are moved relatively toward and past the creaser, and means to operate the presser for the purposes described.

l0. In a device of the character described, an i anvil adapted to have a flat bag top portion pressed thereagainst for creasing, and having a sloping top side terminating at the line of crease of a bag when engaged therewith, a presser of similar form movable to press a receptacle against the anvil, and a separately mounted yieldable presser roll positioned to ride on the anvil and over the presser by operation of the latter, for the purposes described.

1l. A machine of the character described comprising an endless conveyor, a lling station, a creasing station and a gumming and sealing station, all equally spaced longitudinally of the conveyor, a bag supply, lling and depositing means at the filling station to deposit a bag inclined on the conveyor, means at one side of the conveyor to support a deposited bag when inclined thereagainst while moved by the conveyor, a creasing means comprising a yieldable anvil member at the side of the conveyor opposite the direction: of leaning of the bag, a presser spaced from thelpathk of the bag'in the direction o leaning, means to operate the presser to engage and move the bag against the anvil' beyond initial Y positionof the anvil and return, a creasing member yieldingly mounted to engage upon the anvil Y andpresser for the purposes described, an intermittent grip turn-table and gumming device constructed to gum the tongue of a bag and grip theV same in closed position, and means to move the n conveyor in travel stages from stationary position, accelerated and then decelerated to Zero at a distance equal te the distance between successive said station.

V12.. In a bag lling machine, an uninterrupted i smooth face conveyor belt having a continuous Y upstanding longitudinal rib thereon spaced from one side portion of thebelt, a lateral support spaced. above the belt spaced from the verticalV projection of the rib toward said one side,V a 'flat bag presenting means spaced above and adjacent the Verticalprojection of the rib, a bag filling 5 means cooperative With saidV presenting means and including means to release lled bags bottoms Y down over the belt between therib and lateral supporwhereby: they Will drop on to the belt ing upstanding position, means to move dropped bagsV into leaningv engagement with the Vlateral supportt and means to operate the belt. g

aoe'aeee Y 13. In a receptacle vfilling machinefofthe'chaf acter described, a continuous-,face smooth conlli veyor belt having a vco'ntirulois upstanding rib longitudinally thereon. at one sjfde only, Ya lateral c support spaced above the beltand spaced toward Ythe opposite side '.ofthe belt from the vertical projection of said rib, a lat bagrpresenting means Y spaced above and adjaeent the vertical projection spaced longitudinally from the jlling means be-l side the belt or closing and sealing filled bags,

' means to move the belt step by stepincludingr a speed changing gearing constructed to initiate each movement veryl slowly from zero compared` to prior practice and accelerate the belt .movee ment gradually to maximum speed and then. Ciecelerate the movement very slowly, compared jto prior praeticeto stopthe belt at the'end of caen f step movement, and operative connections with the lling means and the closing andv sealing Y means synchronized'with the said gearing.

n AUSTIN s. CHANDLER. 

